Main IndexAuto Repair Home Search Posts SEARCH
POSTS 		Who's Online WHO'S
ONLINE 		Log in LOG
IN




Automotive Repair
Car Troubleshooting Topics
  Car Troubleshooting
  Engine Troubleshooting
  Engine Fault Codes
  Electrical and Wiring
  Transmission Problems

Car Repair Topics
  Car Making Noises
  Car Stereo Repair
  Heating or AC Issues
  Motorcycles and ATVs
  Tricks of the Trade
  Truck Repair Advice

Site Options:   
  Login
  Sign up here!



Latest Forum Post
with_replies.gif image   Lukewarm Heat............
New antifreeze reverse flush heater core...

with_replies.gif image   multiple warning lights
2013 GMC Terrain 130,000 miles 4 cylinde...

with_replies.gif image   2014 Nissan Sentra Shaking
Car recently started shaking when accele...

no_replies.gif image   Buy Flualprazolam Powder Online Whatsapp: +1(424) 328-1086
N/A

hot_with_replies.gif image   1989 toyota pickup 3.0 crank no start
I have a 1989 toyota pickup 3.0 crank no...

with_replies.gif image   Strut spring orientation and strut mount tension nut
2017 Nissan rogue awd 2.5 L Put in Monro...

with_replies.gif image   Transmission stuck in part, I have tried everything
So I'm working on my elderly fathers 201...

with_replies.gif image   2017 dodge journey LED headlights on/off randomly
Year of vehicle 2017 Make of vehicle dod...

with_replies.gif image   Kia Soul starter replacement issues!
Okay so my car is a 2010 Kia soul 2.0 en...

hot_with_replies.gif image   Please Help - Knock sound & engine fail
Hi all, Hoping to get some insight and ...




Ac malfunctioning

Search for (search options)
 



HeatherB90
New User

Sep 12, 2016, 2:35 PM

Post #1 of 3 (1732 views)
Ac malfunctioning Sign In
Hello y'all and thanks in advance for any help you offer.

2002 Infiniti I35 V6 200k miles

Suddenly the last two weeks the ac will blow cold sometimes and hot other times.
There is no pattern to it, it will start up and blow cold the entire drive, it will start up and blow hot the entire drive, it will cycle from cold to hot. Etc
I checked the low side port and when it is blowing hot air it shows 65psi but when the radiator fans click on for a second it jumps back to 43-45psi so I don't know whether to let some out or not and was wondering if maybe the clutch needs reshimming but wanted to ask some advice first and see what others think. I have never had this issue so I have no knowledge on fixing it but I do my work myself and can't afford a pricy shop.

Thanks,
Heather


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Sep 12, 2016, 2:53 PM

Post #2 of 3 (1728 views)
Re: Ac malfunctioning Sign In
Why would you let some out? Did someone add some?

Are these warm periods only when stopped or in slow traffic or does it happen at cruising speeds also?



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Sep 12, 2016, 9:56 PM

Post #3 of 3 (1716 views)
Re: Ac malfunctioning Sign In
Heather - can you check the air gap of compressor's clutch? If known untouched for 200K no surprise it's too large of a gap and takes tools up to removing compressor to adjust. If you measure over .030 w everything off - engine off too it's too large to engage when hot and may when it cools down more.


Essentially you probably should find a "pricey" A/C shop for this but could check yourself,


T






 
 
 






Search for (options) Privacy Sitemap